THE EFFECT OF SEAWATER ON FRACTURE MODE TRANSITION IN FATIGUE

被引：6

作者：

HORIBE, S

NAKAMURA, M

SUMITA, M

机构：

[1] Natl Research Inst for Metals, High, Strength Materials Div, Sakura-mura,, Jpn, Natl Research Inst for Metals, High Strength Materials Div, Sakura-mura, Jpn

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 1985年 / 7卷 / 04期

关键词：

SEAWATER - Transients - STEEL TESTING - Fracture - SURFACES - Microscopic Examination;

D O I：

10.1016/0142-1123(85)90054-4

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The fracture mode transition for two steels fatigued in air and seawater was investigated by measuring the crack growth rates and by examining the fractured surfaces using scanning electron microscopy. It was found that the transition from normal to shear fracture mode did not always occur in seawater under the same fatigue conditions as in air. Three possible mechanisms, based on the effective stress intensity factor range, the threshold stress intensity factor range and environmentally assisted brittle fracture, are proposed to account for this behaviour and their validity is discussed.

引用

页码：224 / 227

页数：4

共 9 条

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